The invention relates to a technology for disassembling negative rings of a TBM (tunnel boring machine) arrival hole. The technology is characterized in that firstly a set of complete negative ring disassembling and hoisting equipment is assembled, and is welded to form a steel bracket which is provided with a hoisting point; one steel rope is sequentially connected with a storage battery car outside the hole, penetrates through the hoisting point, and is used for hoisting pipe pieces through a hoisting bolt; a pulley inside the hole is fixed to the top of each of the pipe pieces through bolts; one end of another steel rope is connected with a storage battery car inside the hole and then goes around the pulley inside the hole, and the other end of the steel rope is used for hoisting the pipe pieces through hoisting bolts. The negative rings are disassembled through the following steps of (1) disassembling steel shotcrete; (2) assembling the hoisting equipment; (3) disassembling a reaction frame; (4) mounting the pulley inside the hole; and (5) disassembling the negative rings, wherein the negative rings are disassembled in a manner that the pipe pieces are separately disassembled, F pipe pieces and adjacent pipe pieces are disassembled at the same time, and the negative rings are disassembled in the disassembling sequence that the pipe pieces are sequentially and symmetrically disassembled from top to bottom. According to the technology disclosed by the invention, the pipe pieces are protected from being damaged in the disassembling process, so that the cyclic utilization number of times of the pipe pieces of the negative rings is increased; original construction machines and tools and original materials are utilized, the investment on the equipment and the materials is reduced, and the utilization rate of the negative rings is increased.